---- Minecraft Crash Report ----
// There are four lights!

Time: 22.2.19 20:55
Description: mouseClicked event handler

java.lang.IllegalStateException: failed to create a child event loop
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:88)
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:58)
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:47)
at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:59)
at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:77)
at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:72)
at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:59)
at vm.f(SourceFile:55)
at vm$$Lambda$2154/1520808879.get(Unknown Source)
at ze.a(SourceFile:16)
at vm.a(SourceFile:136)
at cqx.a(SourceFile:1636)
at cyx.i(SourceFile:300)
at cyx.a(SourceFile:193)
at cyx$$Lambda$1625/1780794397.proceed(Unknown Source)
at cuh$2.a(SourceFile:48)
at csa.a(SourceFile:153)
at csv.a(SourceFile:22)
at cqy.b(SourceFile:86)
at cqy$$Lambda$1609/998575031.run(Unknown Source)
at cvj.a(SourceFile:430)
at cqy.a(SourceFile:86)
at cqy$$Lambda$1404/63344258.invoke(Unknown Source)
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36)
at org.lwjgl.system.JNI.invokeV(Native Method)
at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:3129)
at cpp.c(SourceFile:292)
at cqx.b_(SourceFile:1026)
at cqx.d(SourceFile:975)
at cqx.b(SourceFile:412)
at net.minecraft.client.main.Main.main(SourceFile:154)
Caused by: io.netty.channel.ChannelException: failed to open a new selector
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:177)
at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:151)
at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:127)
at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:36)
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:84)
... 30 more
Caused by: java.io.IOException: Unable to establish loopback connection
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:170)
at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)
at java.nio.channels.Pipe.open(Pipe.java:155)
at sun.nio.ch.WindowsSelectorImpl.<init>(WindowsSelectorImpl.java:127)
at sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:44)
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:175)
... 34 more
Caused by: java.net.ConnectException: Connection timed out: connect
at sun.nio.ch.Net.connect0(Native Method)
at sun.nio.ch.Net.connect(Net.java:458)
at sun.nio.ch.Net.connect(Net.java:450)
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:648)
at java.nio.channels.SocketChannel.open(SocketChannel.java:189)
at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(PipeImpl.java:130)
at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:83)
... 42 more

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

– Head –
Thread: Client thread
Stacktrace:
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:88)
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:58)
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:47)
at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:59)
at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:77)
at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:72)
at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:59)
at vm.f(SourceFile:55)
at vm$$Lambda$2154/1520808879.get(Unknown Source)
at ze.a(SourceFile:16)
at vm.a(SourceFile:136)
at cqx.a(SourceFile:1636)
at cyx.i(SourceFile:300)
at cyx.a(SourceFile:193)
at cyx$$Lambda$1625/1780794397.proceed(Unknown Source)
at cuh$2.a(SourceFile:48)
at csa.a(SourceFile:153)
at csv.a(SourceFile:22)
at cqy.b(SourceFile:86)
at cqy$$Lambda$1609/998575031.run(Unknown Source)

– Affected screen –
Details:
Screen name: cuh
Stacktrace:
at cvj.a(SourceFile:430)
at cqy.a(SourceFile:86)
at cqy$$Lambda$1404/63344258.invoke(Unknown Source)
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36)
at org.lwjgl.system.JNI.invokeV(Native Method)
at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:3129)
at cpp.c(SourceFile:292)
at cqx.b_(SourceFile:1026)
at cqx.d(SourceFile:975)
at cqx.b(SourceFile:412)
at net.minecraft.client.main.Main.main(SourceFile:154)

– System Details –
Details:
Minecraft Version: 19w08b
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 546749040 bytes (521 MB) / 2013265920 bytes (1920 MB) up to 2147483648 bytes (2048 MB)
JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
Launched Version: 19w08b
LWJGL: 3.2.1 build 12
OpenGL: Radeon RX 580 Series GL version 4.6.13544 Compatibility Profile Context 25.20.15011.1004, ATI Technologies Inc.
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: Yes
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: vanilla
Current Language: Čeština (Česko)
CPU: 8x AMD FX-8370 Eight-Core Processor